docs: fix typo in BlockquoteFeature name (#11078)

### What

Before, richText docs were showing a feature name spelt as
`BlockQuoteFeature`.

### How?

 However, the accurate spelling of the feature is `BlockquoteFeature`.

Author: PatrikKozak

docs/rich-text/overview.mdx

@@ -161,7 +161,7 @@ Here's an overview of all the included features:
 |   **`CheckListFeature`**            |   Yes                   |   Adds checklists                                                                                                                                                                          |
 |   **`LinkFeature`**                 |   Yes                   |   Allows you to create internal and external links                                                                                                                                         |
 |   **`RelationshipFeature`**         |   Yes                   |   Allows you to create block-level (not inline) relationships to other documents                                                                                                           |
-|   **`BlockQuoteFeature`**           |   Yes                   |   Allows you to create block-level quotes                                                                                                                                                  |
+|   **`BlockquoteFeature`**           |   Yes                   |   Allows you to create block-level quotes                                                                                                                                                  |
 |   **`UploadFeature`**               |   Yes                   |   Allows you to create block-level upload nodes - this supports all kinds of uploads, not just images                                                                                      |
 |   **`HorizontalRuleFeature`**       |   Yes                   |   Horizontal rules / separators. Basically displays an `<hr>` element                                                                                                                      |
 |   **`InlineToolbarFeature`**        |   Yes                   |   The inline toolbar is the floating toolbar which appears when you select text. This toolbar only contains actions relevant for selected text                                             |